Air Stagnation Advisory issued January 13 at 1:24PM MST until January 17 at 11:00AM MST by NWS Boise ID
* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...From 9 PM MST /8 PM PST/ this evening to 11 AM MST /10 AM PST/ Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
Freeze Warning issued January 13 at 1:28PM MST until January 14 at 9:00AM MST by NWS Phoenix AZ
* WHAT...Localized sub-freezing temperatures in the lower 30s expected. * WHERE...The Northwest Valley of the Phoenix Metro Area, The East Valley of the Phoenix Metro Area, Buckeye/Avondale, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. * WHEN...From midnight tonight to 9 AM MST Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Freeze Warning issued January 13 at 8:57AM MST until January 14 at 9:00AM MST by NWS Tucson AZ
* WHAT...Widespread sub-freezing temperatures of 25 to 32 degrees expected with isolated areas near 22 degrees. * WHERE...South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, and Western Pima County. * WHEN...From midnight tonight to 9 AM MST Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Air Quality Alert issued January 13 at 9:08PM MST by NWS Phoenix AZ
* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of windblown dust and ash. * WHERE...South Coast Air Basin and Coachella Valley. Windblown ash is possible in areas southwest of recently burned areas. Pollution levels can vary by time and location depending on emissions and local weather conditions. * WHEN...Impacts are possible from Monday evening until Wednesday at 7 PM. * IMPACTS...Particle pollution can get deep into the lungs and cause serious health problems such as asthma attacks, heart and lung disease symptoms, and increased risk of respiratory infections. Everyone can be affected, but
Winter Weather Advisory issued January 12 at 11:48AM MST until January 13 at 5:00AM MST by NWS Riverton WY
* WHAT...Snow. Additional snow accumulations up to 5 to 7 inches. Winds gusting as high as 40 to 50 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 5 AM MST Monday. * IMPACTS...Travel could be very difficult especially along Highway 14 and over Granite Pass, as well as along Highway 16 over Powder River Pass. Strong gusty winds may significantly reduce visibility at times.
Winter Weather Advisory issued January 12 at 11:48AM MST until January 12 at 11:00PM MST by NWS Riverton WY
* WHAT...Snow. Additional snow accumulations up to 2 inches. Winds gusting as high as 30 to 40 mph. * WHERE...Northeast Johnson County. * WHEN...Until 11 PM MST this evening. * IMPACTS...Plan on slippery road conditions, especially along Interstates 25 and 90 north and east out of Buffalo.
Cold Weather Advisory issued January 12 at 1:54AM MST until January 13 at 10:00AM MST by NWS Glasgow MT
* WHAT...Very cold wind chills as low as 33 below expected. * WHERE...Sheridan County. * WHEN...Until 10 AM MST Monday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.
Freeze Warning issued January 12 at 12:12PM MST until January 13 at 9:00AM MST by NWS Phoenix AZ
* WHAT...Sub-freezing temperatures in the lower 30s expected. * WHERE...Fountain Hills/East Mesa. * WHEN...From midnight tonight to 9 AM MST Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Freeze Warning issued January 12 at 10:42AM MST until January 13 at 9:00AM MST by NWS Tucson AZ
* WHAT...Widespread sub-freezing temperatures of 25 to 32 degrees expected with isolated areas near 20 degrees. * WHERE...South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, and Western Pima County. * WHEN...From midnight tonight to 9 AM MST Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Winter Weather Advisory issued January 12 at 8:20PM MST until January 13 at 5:00AM MST by NWS Great Falls MT
* WHAT...Snow. Additional snow accumulations up to 2 at lower elevations, but 3 to 5 additional inches in the mountains. * WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains, Judith Basin County and Judith Gap, and Fergus County below 4500ft. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Breezy westerly winds may also further reduce visibility in areas of blowing snow.